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Recognised as Colour

#10215A

  • #10215A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#10215A is a blue with RGB values 16, 33, 90 and HSL 226°, 70%, 21%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#10215A#10215A
HEX#10215A
RGBrgb(16, 33, 90)
RGB (0–1)0.0627, 0.1294, 0.3529
RGB percentages6.3%, 12.9%, 35.3%
HSLhsl(226.2, 69.8%, 20.8%)
HSV / HSBhsv(226.2, 82.2%, 35.3%)
CMYK82.2%, 63.3%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,057,114
CSS custom property--colour: #10215A;

Brightness & contrast

Relative luminance0.01936WCAG 2.x, 0 is black and 1 is white
Perceived brightness40.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.14:1
Contrast with white15.14:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#EFDEA5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002A5Cno red cones; affects about 1% of men; ΔE 8.4 from the original
Deuteranopia#002359no green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#002F3Ano blue cones; rare, and affects men and women equally; ΔE 36.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.14:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19.3Midnight blue · ΔE 20.3Rebecca purple · ΔE 33.7Indigo · ΔE 39.5Slate blue · ΔE 41.9Navy · ΔE 42.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.29, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A4910
Analogous#10465A, #24105A
Triadic#5A1021, #215A10
Split complementary#5A2410, #465A10
Tetradic#5A1046, #5A4910, #105A24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5575E1
Lighter +30%#2A52D9
Lighter +20%#1F41B1
Lighter +10%#183185
Darker −10%#08112F
Darker −20%#010103
Darker −30%#000000
Darker −40%#000000
More saturated +25%#031A67
Less saturated −25%#1D284D

Channel breakdown

R16
G33
B90
Red16 (6.3%)
Green33 (12.9%)
Blue90 (35.3%)
Hue226.22°
Saturation (HSL)69.81%
Lightness20.78%
Dominant channelBlue
Hex per channelR 10 · G 21 · B 5A

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Every value on this page was computed from “10215a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.